In the past ten years, China's development in calcium carbide, sulfuric acid, soda ash, silicone, fluorine chemicals, gases, fuels, coatings, chemical fibers, rubber and other industries

Calcium carbide: the level of development has gradually improved

Since the Eighteenth National Congress of the Communist Party of China, the calcium carbide industry has achieved a transformation
from scale and speed to quality and efficiency.
Production enterprises pay more attention to the optimization of the industrial chain and the development of circular economy, the level of technical equipment and intelligent manufacturing continues to improve, the independent innovation ability of enterprises continues to increase, the number of comprehensive energy consumption and safety accidents continues to decline, and strive to form a new pattern
of green, circular and high-quality development.

The overall production capacity is from high to excellent
.
Since 2016, a number of calcium carbide devices with substandard scale, energy consumption and environmental protection have been eliminated, and a large number of backward production capacity has been withdrawn
.
According to incomplete statistics, since 2016, the calcium carbide industry has cleared the backwardness, the invalid production capacity has exceeded 10 million tons, and the effective production capacity has reached 87%.

Industrial structure and geographical distribution are optimized and concentrated
.
From the perspective of industrial structure, in 2021, there will be 68 enterprises in the calcium carbide industry of 200,000 tons / year and above, with a total production of 26.
3 million tons of calcium carbide, accounting for 87.
6%
of the total output.
In terms of geographical distribution, the calcium carbide industry has shifted to the central and western regions rich in coal resources, and the industrial concentration has been further improved
.

The efficiency of leading enterprises has gradually improved
.
In the past ten years, the scale of leading enterprises has gradually expanded, and a number of calcium carbide production bases with a production capacity of more than 1 million tons / year have been built, and on this basis, an integrated business model based on calcium carbide has been formed to expand the upstream resource end and the downstream application end, so that low value-added chemical raw materials can be converted
into high value-added fine chemical products.
In the second half of 2022, a total of 27 calcium carbide devices with production conditions will be put into operation, with a production capacity of 2.
34 million tons, almost all of which are equipped with downstream product production lines
.
For example, Inner Mongolia Dongjing Bio-environmental Protection Technology Co.
, Ltd.
has completed a 150,000 tons/year calcium carbide project, supporting 280,000 tons/year 1,4-butanediol (BDO) device; Xinjiang Jinhui Zhaofeng Energy Co.
, Ltd.
750,000 tons / year under construction calcium carbide project, for 1 million tons / year polyvinyl chloride (PVC) project supporting device; Mao'an Environmental Protection Chemical Co.
, Ltd.
plans to build a 1 million tons / year calcium carbide project, will build 12× 40.
5 MVA hermetalloid furnace calcium carbide production line, and 600,000 tons / year BDO, 240,000 tons / year thermoplastic biodegradable materials (PBAT) and other devices to form a biodegradable materials integration project
.

With the advancement of the "double carbon" goal, the calcium carbide industry as a "two high and one capital" industry has also received more attention
.
In recent years, the industry has taken technological innovation as an important means to achieve green development and accelerated the improvement of energy conservation and consumption reduction in production processes
.
The new process of Shenwu regenerative calcium carbide developed by Beijing Shenwu Environmental Energy Technology Group Co.
, Ltd.
can reduce the average power consumption per ton of calcium carbide by 600 kWh, while reducing carbon dioxide, sulfur dioxide and nitrogen oxide emissions; The pelletic calcium carbide raw material process of Yunnan Bangte New Material Co.
, Ltd.
not only reduces the reaction temperature required for entering the furnace and reduces the energy consumption of production, but also reduces the pumping volume of the calcium carbide furnace by 30%, reduces the dust by nearly half, and greatly reduces
the cost of environmental protection.

In order to further improve the level of safety and environmental protection, the calcium carbide industry actively promotes the automation and intelligent upgrading
of production technology.
Zhejiang Jindun Chain Manufacturing Co.
, Ltd.
has developed a chain intelligent calcium carbide conveyor line, which can meet the simultaneous discharge of more than 4 calcium carbide furnaces, realize the sequential feeding and unloading of multiple furnaces, and the whole process adopts automatic intelligent control; Xinjiang Zhongtai Chemical Toxon Energy Co.
, Ltd.
has developed its own automatic feeding technology for calcium carbide furnaces, successfully broke through the problem of automatic and accurate feeding of calcium carbide furnaces, and will realize the automatic identification and accurate batching of calcium carbide furnace silos, which is expected to save more than
2.
6 million yuan per year.

Many calcium carbide production enterprises are also actively trying automation and intelligent transformation, and vigorously improving the automation, intelligence and informatization level
of key processes in calcium carbide production.
For example, the large-scale closed calcium carbide furnace intelligent control energy-saving upgrading project implemented by Xinjiang Tianye Group will introduce 42 sets of intelligent baking robots, 24 sets of closed calcium carbide furnace advanced control system (APC) and supporting automation control systems
to the production workshop.
The industry is also promoting intelligent detection equipment such as automatic monitoring of electrode furnace length and online measurement of electrode paste column to achieve "mechanized substitution, robot operation, and automatic personnel reduction" and comprehensively improve the safety production level of
the industry.

Sulfuric acid: non-stop fruitful results

Since the Eighteenth National Congress of the Communist Party of China, China's sulfuric acid industry has developed fruitfully, with continuous growth in production capacity and new production volumes; The equipment level is continuously improved to achieve iterative upgrading; Continue to develop sulfur resource supply channels to ensure the stable development of the industry; Pay more attention to green development and achieve low-carbon environmental protection
.
The sulfuric acid industry is moving
towards high-quality development.

In the past ten years, China's sulfuric acid industry has been committed to improving the self-sufficiency rate of
sulfur resources.
Statistics from the China Sulfuric Acid Industry Association show that the self-sufficiency rate of sulfur in China has increased from 31.
7% in 2012 to 50.
6% in 2021, and the dependence on sulfur resources abroad has decreased from 50.
2% in 2012 to 45%
in 2021.
From 2012 to 2021, China's smelting acid production increased by 74.
3%.

Due to the continuous expansion of new sources of sulfur resources in China, sulfuric acid made of sulfur-containing wastes such as waste sulfuric acid, waste sulfur yellow, phosphogypsum, and acidic gas has alleviated the previous situation
that China's sulfur resources were heavily dependent on imports.
Data show that China's sulfuric acid imports showed a downward trend from 2016 to 2021, and exports showed a substantial increase
.
Among them, the number of sulfuric acid imports in China in 2021 was 414,700 tons, down 34.
8% year-on-year; Exports of sulfuric acid were 2.
8411 million tons, an increase of 64.
9%
year-on-year.
Thanks to the diversification of sulfur resources and the improvement of sulfur self-sufficiency, China has changed from a net importer of sulfuric acid to a net exporter
.
China's net exports of sulfuric acid increased from -969,000 tons in 2012 to 2.
426 million tons
in 2021.

In the past ten years, major technological breakthroughs
have also been made in the localization of sulfuric acid plants in China.
Key equipment and materials such as high-temperature concentrated sulfuric acid pumps, fiber mist eliminators, high-efficiency catalysts, and corrosion-resistant materials have been basically localized
.
In terms of high-temperature concentrated sulfuric acid pumps, the long-shaft ultra-high temperature concentrated sulfuric acid liquid pump developed by Xuanda Industrial Group Co.
, Ltd.
has a maximum applicable medium temperature of 220 °C, which not only breaks through the monopoly of foreign technology of such products, but also creates a world record for the application of ultra-high temperature concentrated sulfuric acid pumps, and takes the lead in realizing the localization
of 3~4 meters working pumps under liquid.
The newly built ultra-high sulfuric acid moisture pressurization station and key units of Puguang 101 gas collection station have also achieved technological breakthroughs in the localization of equipment, and the overall technology has reached the international advanced level, providing core key technical support
for improving the recovery rate and extending the stable production period of China's high sulfur gas fields.

In the past decade, the scale of sulfuric acid plants has become large-scale
.
Under the efforts of Sinopec Nanjing Engineering Co.
, Ltd.
, Donghua Engineering Technology Co.
, Ltd.
, Yunnan Chemical Design Institute, Sichuan Chemical Design Institute, China Ruilin Engineering Technology Co.
, Ltd.
, Nanjing Hailu Chemical Technology Co.
, Ltd.
, etc.
, the localization rate of engineering technology design and equipment in China's sulfuric acid industry has reached 100%, and a large-scale sulfuric acid device
with Chinese characteristics has been designed and built.

In the past ten years, the sulfuric acid industry has continuously achieved technological upgrading in the treatment of "three wastes", and the environmental protection level of the industry has been increasingly improved
.

In terms of exhaust gas emissions, the exhaust gas treatment technology of the sulfuric acid industry is constantly upgrading
.
A series of exhaust gas treatment technologies such as low-temperature catalytic method and hydrogen peroxide method have emerged in the industry, which have improved the exhaust gas treatment level of the sulfuric acid industry and reduced sulfur dioxide emissions
.
According to the data of the second pollutant census in 2017, the sulfur dioxide emissions of the sulfuric acid industry have dropped significantly, and compared with the "one pollution general", the sulfur dioxide emission coefficient of various raw materials to make acid has decreased by 70% to 81%.

In terms of wastewater discharge, compared with the coefficient of "one pollutant popular", the amount of industrial wastewater and arsenic production coefficient of pyrite to acid in "two pollutes" have decreased
significantly.
Among them, the amount of industrial wastewater decreased by 32.
6%, and the pollution coefficient of arsenic decreased by 91%, which directly reflected the technical improvement of pyrite acid production enterprises in the purification process and the strict control
of the arsenic content of pyrite raw materials in the past 10 years.

In terms of solid waste utilization, the sulfuric acid industry formulated the national standard of "Pyrite Slag" in 2013 and revised it in 2021
.
At present, the pyrite slag has been 100% utilized
.
By regulating the utilization of pyrite slag, the solid waste discharge of the sulfuric acid industry has been greatly reduced
.

With the continuous improvement of environmental protection requirements, sulfur-containing waste has become a bottleneck
restricting the development of related industries.
In the past ten years, in the collaborative disposal of sulfurous waste by sulfuric acid devices, China has achieved a win-win situation of improving the efficiency of sulfuric acid plants and solving the problems of solid waste treatment in related waste industries, and the economic benefits and environmental protection benefits are very significant
.

Soda ash: increased concentration and optimized product structure

Since the Eighteenth National Congress of the Communist Party of China, the soda ash industry has adhered to the concept of green development, continuously improved the concentration of the industry, gradually optimized the product structure, continuously compared with the level of process technology and equipment outside the United States, and significantly improved
the level of energy conservation and consumption reduction.

The concentration of soda ash industry has steadily increased
.
Statistics show that the number of domestic soda ash production enterprises has decreased from 44 in 2012 to 34 in 2021
.
While the number of enterprises has decreased, the overall production capacity of the industry has increased
slightly.
The market share of the top 4 leading enterprises is 35%, and the market share of the top 8 companies has exceeded 50%, reaching 54%.

The product structure has been further optimized
.
In 2012, the proportion of young soda ash (ammonia alkali method) was 58.
4%, and the proportion of heavy soda ash (natural alkali method) was 41.
6%.

By 2021, the proportion of domestic light soda ash has dropped to 47%, and the proportion of heavy soda ash has reached 53%.

The level of process technology and equipment is comparable to that of the world
.
The process technology and equipment of the soda ash industry have been continuously innovated and are approaching or reaching the international advanced level, and the soda ash industry actively eliminates backward devices, and the equipment achieves energy-saving and efficient development
.
The soda ash product quality indicators have been revised and the level has been continuously improved
.
As the core equipment of soda ash production, the carbonization tower has been more large-scale, and the production capacity of a single tower can reach more than 100,000 tons/year; The use of large belt vacuum filter instead of vacuum drum filter can save the amount of washing water, reduce soda ash salt and moisture, reduce steam consumption, and further improve product quality; The production of co-alkali soda ash adopts a large cold salt crystallizer, with a single set of capacity of more than 500,000 tons / year, and the supporting equipment adopts a large-scale centrifugal ice machine driven by a steam turbine, and the 1 million tons / year co-alkali device only needs to be matched with an ice machine, and realize unattended; Carbonization tower to achieve automatic intelligent operation; Combined alkali calcination waste heat recovery refrigeration is applied to ammonium chloride crystallization production energy saving and consumption
reduction.

The energy consumption of soda ash products continues to decrease, and the comprehensive utilization of resources and environmental protection level are increasing
.
The average energy consumption of ammonia alkali method decreased by 10% from 378 kg of standard coal/ton in 2012 to 340 kg of standard coal / ton in 2021; The average energy consumption of the co-alkali method decreased from 198 kg of standard coal/ton in 2012 to 162 kg of standard coal/ton in 2021, a decrease of 18.
2%.

Silicone: high-quality development is more colorful

The ten years since the Eighteenth National Congress of the Communist Party of China have been a decade for China's silicone industry to stand at the forefront and strive to be the first, and scientific and technological innovation, industrial development, and quality improvement have all shown a good development trend, and the quality of high-quality development has become more distinct
.

In the past ten years, the silicone industry has a complete industrial chain of basic raw materials, monomers, intermediates to various types of terminal product production, forming a complete silicone industrial system from talent training, scientific research, engineering development and design, safety and environmental protection, special equipment, analysis and testing, automatic control, processing aids and warehousing and logistics, etc.
, with a number of silicone industry clusters and industrial parks, has become a global silicone production center, and created an internationally influential and national landmark new material industry
。

In the past decade, China's silicone monomer production capacity has continued to grow, with a compound growth rate of 7.
5% in the past 10 years, reaching 3.
9 million tons in 2021, accounting for about 62.
9%
of the total global silicone monomer production capacity.
In 2020, 4 silicone companies were successfully listed
.
In 2021, China's siloxane production reached 1.
59 million tons, an increase of 18.
83%
over the previous year.

In the past ten years, the domestic silicone industry has pioneered and innovated, silicone technology and technology have gradually matured, and the localization process has advanced
rapidly.
With the rapid expansion of production capacity, the quality of domestic silicone products continues to upgrade, the import volume continues to decline, the substitution import effect is significant, the export volume of silicone products in China is growing rapidly, the export volume of siloxanes in the primary form continues to rise, the compound growth rate is 16.
37%, the compound growth rate of the past 5 years is 15.
37%, especially in the past two years, the export volume in 2021 increased by 54.
81%
over the previous year.
With the development and growth of China's silicone industry, China became a net exporter of silicone products in 2014, and the export volume has increased
year by year since then.
In 2021, the export volume of China's silicone products under the 39100000 tariff number is 376,000 tons, with an average annual increase of about 22% in the past 5 years, and the average annual increase in net exports is as high as 56.
2%.

In the past ten years, the silicone industry has adhered to innovation-driven development, vigorously implemented cutting-edge technology research actions and incremental quality improvement of innovation subjects, and the construction of innovation platforms, and related technologies have made breakthrough progress, and the industry's scientific and technological innovation capabilities have been significantly improved
。 Enterprises in the industry cooperate with universities and research institutes to build a large number of major innovation platforms such as State Key Laboratories, National Enterprise Technology Centers, Innovation Research Institutes, Joint Laboratories, Silicone Innovation Team, Silicone Industry Alliance, and Silicone Professional Park, breaking through one technical bottleneck after another; Undertaking the "industrial strong foundation" project of the Ministry of Industry and Information Technology, it has developed many high-tech, high-end products and new equipment, and solved the key technical problems common to the
industry.
Silicone companies are also actively engaged in the research and development of new products and processes, and increase investment in
innovation.
In 2021, 14 listed companies invested 3.
02 billion yuan in research and development, the industry has achieved more than 700 research results, obtained 1598 silicone authorized invention patents, and obtained 10350 silicone authorized invention patents in the past ten years
.
In the field of silicon materials, 404 national standards and industry standards have been formulated, and scientific and technological innovation has been used to help the healthy development of
the industry.

In the past ten years, silicone enterprises have highlighted the intelligent transformation of production lines, optimized the production efficiency of enterprises, and comprehensively improved the
level of informatization, digitalization, networking and intelligence.
Industry enterprises to build a new model of "Internet + silicone", focusing on building a silicone industry cluster, digital control center and circular economy demonstration park, has won the honorary titles
of "pilot demonstration project for intelligent manufacturing of silicone materials" and "pilot demonstration project for silicone big data application based on industrial Internet".

Fluorine chemical: becoming the world's largest producer and marketer

In the decade since the Eighteenth National Congress of the Communist Party of China, the key core technologies of the fluorine chemical industry have continued to make breakthroughs, the industrial chain has been extended and completed, and the industry has continued to grow and develop
.
China's fluorine chemical enterprises have developed to thousands of enterprises, forming a complete fluorine chemical industry chain including inorganic fluoride, fluorocarbon chemicals, fluoropolymers, fluorine-containing fine chemicals, fluorine material processing, etc.
, with an annual production capacity of more than 6.
4 million tons, a total output of more than 4.
5 million tons, and a total output value of more than 100 billion yuan
.
The application of fluorine chemical products has been extended to high-end fields
such as national defense and military industry, aerospace, informatization and new energy.
China has become the world's largest producer and consumer of fluorine chemicals
.

Inorganic fluoride production capacity has ranked first in the
world.
Products from fluorite, hydrogen fluoride, fluorinated salts, upgraded to electronic grade hydrofluoric acid, high-purity fluorinated salts, fluorinated electronic special gas, lithium battery fluorinated electrolytes, fluorinated additives, fluorinated graphite and rare earth fluoride and other special materials
.
Electronic grade hydrofluoric acid has been industrialized to meet the UPS and UPSS grades used in semiconductors; The total production capacity of major electronic special gas varieties such as nitrogen trifluoride (NF3) and sulfur hexafluoride (SF6) reached 62,000 tons/year; The production capacity of lithium hexafluorophosphate for lithium battery electrolyte exceeds 100,000 tons/year
.

The development of fluorocarbon chemicals has made brilliant achievements
.
At present, China's fluorocarbon chemicals have formed a relatively complete product system, and the total production capacity and output of the main products in 2020 will reach 2.
824 million tons and 1.
612 million tons respectively, which has become the world's largest producer and consumer of
fluorocarbon chemicals.

Fluoropolymers achieve high-end breakthroughs
.
With the rapid development of emerging industries such as new energy, semiconductors, medical treatment, 5G communications, environmental protection industry, aerospace and aviation in China, the production, processing and application level of domestic high-end fluoropolymers has increased rapidly, and the application field of fluoropolymers has expanded
rapidly 。 In 2021, the total production capacity of China's major fluoropolymers, such as polytetrafluoroethylene (PTFE), polyvinylidene fluoride (PVDF), perfluoroethylene propylene copolymer (FEP), fluorine rubber (FKM) and other products, was 312,000 tons, an increase of 98.
2% over 2012, accounting for about 64.
9% of the total global production capacity, and the total output was 258,000 tons, an increase of 249.
5%
over 2012.
The level of fluoropolymer chemical equipment and automation control in China has been further improved, the mass transfer and heat transfer efficiency of the reactor has been greatly improved, and the batch stability of polymer products has been significantly improved
。 Medium and high compression ratio polytetrafluoroethylene (PTFE) dispersion resin, ultra-high molecular weight PTFE resin, etc.
have been widely used in base station filters, high-frequency high-speed PCB/FPC, 5G chip process, high-frequency connectors, cables and other 5G communication fields; Meltable polytetrafluoroethylene (PFA) preparation technology breaks the monopoly of foreign countries, develops a series of products such as cable grade, injection extrusion grade, molding grade, electrostatic spray grade, etc.
, and successfully achieves import substitution in the semiconductor industry and 5G antenna and other fields; Ethylene-tetrafluoroethylene (ETFE) resin core preparation technology has been successfully developed, and the products are used in cable insulation, thin film construction, new energy and special applications; Polyvinylidene fluoride (PVDF) is the key material for power lithium battery vehicles, and many domestic enterprises have achieved breakthroughs and supplied lithium battery head enterprises; Fluorine-containing polyimide has been successfully applied to the field of 5G communication and flexible display; Perfluorosulfonase acid resin is used in the field of hydrogen energy, fuel cell proton membrane technology is the world's leading, has formed 100,000 hydrogen fuel cell vehicles core material support
.

The competitiveness of fluorine-containing fine chemicals in the international market has been enhanced
.
In the fluoroene ether, aliphatics, fluorinated liquid crystal intermediates and heterocyclic fluorine-containing fine chemicals have developed a series of internationally competitive products; The development of fluorine-containing fine chemicals required in the fields of new fluorine-containing pesticides, pharmaceuticals, liquid crystal intermediates, fluorine-containing surfactants and new energy materials has accelerated significantly; Breakthroughs have been made in the synthesis of special fluorine-containing monomers such as perfluoro-n-propyl vinyl ether (PPVE), laying a solid foundation
for the production of high-end fluoropolymers.

Gases: Applications are becoming more and more extensive

Since the Eighteenth National Congress of the Communist Party of China, China's gas industry has based on the new development stage, implemented the new development concept, built a new development pattern, promoted high-quality development, faced the world's scientific and technological frontiers, the main economic battlefield, the country's major needs, and the people's life and health, deeply implemented the innovation-driven development strategy, and achieved leapfrog development in gas device technology, production scale, supply mode, application, etc.
, and its strategic, basic and leading position in economic and social development has become more prominent
.

Scientific and technological innovation runs out of "acceleration"
.
In the past decade, the scale of air separation industry enterprises producing oxygen, nitrogen, argon and other gases in China has been expanding, and the number of air separation equipment and the total oxygen production capacity manufactured have ranked first
in the world.
The independent research and development capabilities of domestic enterprises have been greatly improved, the technical level of domestic large-scale and extra-large air separation devices has reached the international level of similar products, and the single capacity of air separation devices has increased to 80,000 to 120,000 levels
.
In particular, the rise of new coal chemical and petrochemical industries such as coal-to-natural gas, coal-to-oil, coal-to-olefins, coal-to-methanol, and refining and chemical integration has greatly promoted the demand for
80,000 to 120,000 grades of extra-large air separation equipment.
With the expansion of the scale of the air separation unit and the progress of rare gas extraction technology, many domestic enterprises have seen the market prospect of rare gases and accelerated the pace
of development and technological progress of rare gas refining industry.

The foundation of energy production is constantly being consolidated
.
In this decade, China's liquefied natural gas (LNG) industry is in a stage of rapid development, with output increasing from 1.
277 million tons in 2012 to 15.
451 million tons in 2021, and the compound annual growth rate of production from 2012 to 2021 is 31.
92%.

At the same time, China also actively promotes the construction of LNG large-volume storage tanks and promotes the transfer
of LNG thin-film tank technology from ships to land.
In addition, in the context of China's vigorous development of clean energy, hydrogen energy as an efficient and pollution-free, renewable, storeable, safe secondary energy, can be widely used in automobiles, power generation and other fields, the world's major economies have accelerated the layout of hydrogen energy industry, the construction of global hydrogen refueling stations is like a bamboo
.
According to statistics, the number of hydrogen refueling stations in operation in the world in 2021 is 659; China has built 255 hydrogen refueling stations, including 183 in the camp, and the cumulative number of hydrogen refueling stations, the number of hydrogen refueling stations in the camp, and the number of newly built hydrogen refueling stations have achieved three "firsts"
for the first time in the world.

Much progress has been made in the cause of health and health
.
In the past decade, China's health care has made the greatest progress, the people's sense of health has been continuously enhanced, China's medical technology level and medical quality have been significantly improved, and a high-quality and efficient medical and health service system has been continuously built to better meet the health needs
of the masses.
To implement the Healthy China Strategy, the gas industry has played an
important role.
The gas industry continues to develop medical gas product varieties and related medical devices to improve the medical gas service level
of medical institutions.
In the fight against the new crown pneumonia epidemic, the gas industry has played an important role
in winning the battle against the epidemic.
In the past decade, the gas industry has continued to develop and innovate, developing food additives such as carbon dioxide, food-grade nitrogen, food-grade argon, as well as bubble machines, freshness preservation machines, etc.
, and promoting them to milk powder, grain, edible oil, mineral water, beauty and other fields
.

The ability to prevent and reduce disasters has been significantly improved
.
In the past decade, a large number of industrial and civil buildings have emerged, and the requirements for fire extinguishing agents in related equipment fields have become higher and higher
.
For the extinguishing of combustible gases, combustible liquids and electrical appliances, as well as computer rooms, important cultural relics archives, communication and broadcasting machine rooms, microwave machine rooms and equipment fires, gas fire extinguishing systems are currently the cleanest and most effective means of
fire extinguishing.
At present, the gas industry has developed carbon dioxide fire extinguishing systems, haloalkane fire extinguishing systems, nitrogen fire extinguishing systems and other inert gas fire extinguishing systems
。 As of August this year, there are about 140 manufacturers of IG-541 fire extinguishing system equipment in China, about 70 manufacturers of high-pressure carbon dioxide fire extinguishing system equipment, about 20 manufacturers of carbon dioxide and heptafluoropropane temperature sensing self-starting devices (fire detection tubes), about 290 manufacturers of heptafluoropropane fire extinguishing system equipment, about 410 manufacturers of cabinet heptafluoropropane gas fire extinguishing devices, and about 120 manufacturers of suspended heptafluoropropane gas fire extinguishing devices
.
At present, domestic gas fire extinguishing systems and devices have been relatively mature, and have been widely used in various projects of domestic workers and civil construction
.

Green and low-carbon development is steadily advancing
.
In this decade, in order to effectively cope with the global climate change caused by greenhouse gases, the gas industry has actively promoted carbon dioxide capture and recovery and comprehensive utilization
.
From 2010 to 2014, the average annual growth rate of the production capacity of liquid carbon dioxide plants in China was more than 3%, the average annual growth rate from 2014 to 2017 was about 6.
2%, in 2018 it increased by 16.
5% over 2017, and in 2019 it increased by 8.
3%
compared with 2018.
In 2020, due to the impact of the new crown pneumonia epidemic, the production capacity of liquid carbon dioxide devices was basically flat, and in 2021, driven by the impact of the previous year and the "double carbon" policy, the production capacity increased by 30% to 2176 tons
.
Among them, food-grade carbon dioxide production accounted for 16.
7%
of the total output.

Dye: basically meet the needs of economic development

Since the Eighteenth National Congress of the Communist Party of China, China's dye industry has developed
rapidly.
In the past ten years, China's dye industry has realized the transformation of the innovation model based on independent design-research and development-creation of new products, and the industrial transformation and upgrading has accelerated
.

At present, the varieties of dyes produced in China have reached more than 700 kinds, covering major dye categories
.
Domestic dyes are mainly
disperse dyes and reactive dyes.
Among them, the types of disperse dyes are relatively complete, including azo, anthraquinone and heterocyclics
.
China's dye enterprises are mainly concentrated in Zhejiang, Jiangsu, Shandong and other places, dye and intermediates scale ranked first in the world, production capacity accounted for more than 50% of the world's total production capacity, the top 10 leading enterprises total output accounted for nearly 80%
of the industry's total output.
As the largest province in China's dye production, Zhejiang has concentrated more than 60 production enterprises, and world-class dye production enterprises
such as Zhejiang Longsheng Group Co.
, Ltd.
have been born.
In the past ten years, China's dyeing and pigments, intermediates, printing and dyeing additives and other industries economic operation indicators have increased significantly, and continued to drive the development of textiles, printing and dyeing, plastic products, building materials, coatings and other industries, basically meeting the needs
of national economic development.

The advantages of industrial chain integration are obvious
.
In the past ten years, the advantages of the industrial development model of the dye industry agglomeration have been highlighted, and through the rational layout of integration, the organic connection and mutual support between the upstream and downstream of the industrial chain have been realized, and the resource utilization efficiency and corporate profitability
have been improved.
China's leading dye enterprises have adopted the strategy of industrial chain integration, actively extending to the upstream and downstream of the industrial chain, further consolidating their leading position and competitive advantage
in the industry.
With the maturity of the development of China's dye industry, the construction of industrial chain integration has become an important strategic means
for leading enterprises to enhance profitability and build competitive barriers.

The industrial structure is more reasonable
.
In the past ten years, the dye industry has taken the adjustment of industrial structure as an important issue, consciously practiced the concept of green development, and made significant progress in strictly controlling new production capacity and vigorously eliminating backward production capacity, and the industrial structure has become more reasonable
.
Affected by the upgrading of dye production equipment, environmental protection requirements, as well as raw material supply costs, labor costs, transportation costs and many other factors, domestic dyeing and pigment enterprises have accelerated their transformation and upgrading, and some traditional small dye production enterprises have withdrawn from the historical stage
.

Production technology is constantly improving
.
In the past ten years, through innovation-driven and technological upgrading, dye enterprises have shifted from the production of general-purpose dye products to the development of personalized, differentiated, high-performance, environmentally friendly dye products, and the technical level of the dye and dye intermediates industry has been continuously improved
.
China's dye industry has overcome a large number of core key technologies such as catalytic hydroreduction technology, phase transfer catalytic technology, continuous nitrification technology, sulfur trioxide technology, recycling technology, surface modification technology, etc.
, and has made major breakthroughs in the localization, large-scale, continuity and automation of production equipment, and developed a large number of new dyes with strong compatibility, high fixation rate and excellent color fastness
.

Cleaner production problems have been solved
one after another.
In the past ten years, in terms of cleaner production processes, the whole industry has vigorously developed new processes to replace traditional processes with serious pollution, reduce the emission of "three wastes", and made breakthroughs in a number of key technologies in the industry, such as the creation of high-grade new reactive dyes, the development of new processes for the clean production of dye intermediates resorcinol, and the new technology of dye wastewater treatment and recycling, and successfully developed a number of new environmentally friendly dye varieties
。 It is worth mentioning that Zhejiang Yantu Co.
, Ltd.
has invested more than 1.
5 billion yuan in environmental protection in recent years, focusing on process improvement and "three wastes" treatment, and eliminated high-pollution, high-energy consumption and high-emission products through process transformation, and a variety of waste emissions have been sharply reduced
。 Zhejiang Longsheng Group Co.
, Ltd.
in view of the traditional use of aromatic amine fine chemical intermediates iron powder, sulfide alkali and other reduction process production of backward technology, environmental pollution serious problems, with the development of green chemistry and fine chemical clean production technology as the main line, carried out catalytic hydrogenation technology research, developed a green hydrogenation technology as the core with "atomic economy" of the process route
.

The tubular reactor is also applied in the production of dye intermediates and the continuous coupling of reactive dyes, which realizes continuous production and segmented temperature control, and has the characteristics of fast reaction speed, high conversion rate and high production efficiency, which greatly promotes the overall improvement
of the production level of the dye and pigment industry.

Coatings: Building a new ecology for green development

Since the Eighteenth National Congress of the Communist Party of China, under the guidance of the basic policy of "adjusting the structure, changing the mode, and developing steadily", China's coating industry has entered a stage
of slow growth from stable to good from high-speed growth.
In the process of promoting supply-side structural reform, the coatings industry takes "promoting transformation with environmental protection and seeking development with green" as the main line, driven by scientific and technological innovation, guided by the "double carbon" goal, laying out low-carbon sustainable development, cultivating "specialized, special and new" key enterprises, and building a new ecology
for high-quality industrial development.
At the same time, the industry actively promotes the construction of monitoring and certification system, leverages intelligence and digitalization, and does a good job in product hierarchical management, ensuring the safety and stability
of the supply chain.

In the past ten years, the production capacity of China's coatings industry has grown steadily and continuously, and the total output has accounted for more than 20% of the global market, becoming a major paint producer in the
world.
According to data from the China Coatings Industry Association, from 2012 to 2021, China's annual paint production increased from 11.
377 million tons to about 38 million tons, with an annual profit of more than 30 billion yuan
.
The localization rate of products in subdivisions such as architectural coatings, automotive coatings, wood coatings, marine coatings, and industrial anti-corrosion coatings has been continuously improved, and the varieties and technologies are approaching or even surpassing the world's leading level
.
Titanium dioxide, synthetic resin and other upstream raw materials of the domestic process is also constantly breaking through innovation, Longbai Group Co.
, Ltd.
, Yunnan Pantitanium Technology Co.
, Ltd.
, Jinzhou Titanium Industry Co.
, Ltd.
, Yibin Tianyuan Group and other chlorinated titanium dioxide technology matures to gradually replace imports, Fujian Kuncai Material Technology Co.
, Ltd.
, Panzhihua Quanrui Industrial Co.
, Ltd.
hydrochloric acid titanium dioxide technology innovation world leading
.

The green ecology of the industry is taking shape
.
China's coatings industry in the waterborne coatings, powder coatings, radiation-curing coatings, high solids and solvent-free coatings and other environment-friendly coatings production accounted for an increasing proportion, by 2021 environment-friendly coatings production has accounted for about 60% of China's total paint output, has made great progress
.
With the acceleration of urbanization and the further tightening of environmental protection policies, the industrial concentration of the coatings industry is also increasing
.
East China, South China, Southwest China has formed a number of chemical parks, coatings industry parks, high-quality clusters of green coatings industry chain, coatings industry cluster gradually formed
.

Small and medium-sized paint enterprises are embarking on the road of "specialization and innovation", becoming a new force that stimulates innovation and stabilizes the industrial chain supply chain
.
In the three batches of national "specialization, special new" and "small giant" lists released in China, a total of 41 coating companies have been shortlisted, and their products include high flash point fireproof coatings, steel structure anti-corrosion coatings, nuclear power coatings, waterborne additives, asparagus polyurea resin coatings and other specialized products, filling the gap in a number of domestic paint subdivisions, and the industry has formed a multi-level healthy ecology
.

Industry standards have been further improved
.
The intensive introduction of environmental protection policies, regulations and standards has effectively promoted the green development
of the industry.
The "Six Action Plans for the Green Development of China's Coatings Industry (2017~2020)" organized and issued by the China Coatings Industry Association provides important guidance
for the green development of the industry.
In the list of "frontrunners" of enterprise standards in 2021, in the field of paint pigments, 7 companies such as Ocean Chemical Research Institute Co.
, Ltd.
and Sino New Materials Co.
, Ltd.
were shortlisted as the "frontrunners" of corporate standards for waterborne wood coatings, powder coatings, anti-corrosion primers and titanium dioxide pigments
.

China's coatings industry also actively participates in international standardization affairs, providing "Chinese solutions"
for international standards.
In 2020, the China Coatings Industry Association issued two group standards, "Antibacterial and Antiviral Coatings" (T/CNCIA 01014-2020) and "Test Methods for Antiviral Properties of Coatings (Paint Films)" (T/CNCIA 03002-2020), which clearly put forward the requirements for antibacterial and antiviral properties of coatings, and stipulated the antiviral performance test methods of coatings (paint films), breaking the lack of domestic and international antiviral coatings and improving the international influence of the industry.
Promote our country from a paint country to a paint power
.

Chemical fiber: the formation of the whole industry chain development model

Since the Eighteenth National Congress of the Communist Party of China, the construction of China's chemical fiber industry system has been continuously strengthened, not only the field of conventional fibers has maintained an international leading level, but high-tech fibers have also achieved major breakthroughs and entered the ranks of
advanced countries.
The scale of the industry also ranks first in the
world.

Statistics show that the domestic chemical fiber production from 38.
37 million tons in 2012, accounting for nearly 65% of the world's total, accounting for 77% of China's total fiber processing, exports of 2.
47 million tons, by 2021 output exceeded 65 million tons, accounting for more than 70% of the world's total, accounting for nearly 85% of China's total fiber processing, exports of more than 5 million tons, accounting for more than 50% of global trade, ranking first in the
world.

With the expansion of scale, the industrial structure adjustment of China's chemical fiber industry is also continuing to advance, especially since the "13th Five-Year Plan", the advantageous enterprises in the industry have achieved rapid expansion through mergers and acquisitions, and the industrial concentration has increased
significantly.
The increase in capacity concentration in the field of polyester civil filament is particularly prominent, and in 2021, the capacity concentration of the top 6 enterprises will reach 61.
5%, an increase of 27.
5 percentage points over
2012.

At present, China's chemical fiber industry maintains an international leading level in the field of conventional fibers, and it is in a leading position in the world in five aspects of characterizing advanced functional fibers - ultra-high performance, intelligence, multi-function, green and low carbon, and high added value; High-tech fiber has achieved a major breakthrough and entered the ranks of advanced countries; It has formed an industrial structure with complete varieties and complete industrial chains, and is the producer country with the widest coverage of chemical fiber varieties in the
world.
Among them, the production scale of traditional varieties such as recycled cellulose fiber, polyester, nylon, acrylic and spandex ranks first in the
world.
The growth of domestic high-performance fiber production capacity and output is close to or more than 100% during the "13th Five-Year Plan" period, becoming a new economic growth point for
the industry.

With the continuous breakthrough of industrialization key technologies, domestic high-performance fibers and bio-based fibers have shown a strong momentum
of development.
The annual output of high-performance fibers such as carbon fiber, aramid, ultra-high relative molecular weight polyethylene fiber and continuous basalt fiber has exceeded 10,000 tons, and the market share has ranked among the top three in the world; Polyphenylene sulfide fiber, PTFE fiber and other products have also developed steadily; Lyocell fiber, bamboo pulp fiber, polylactic acid (PLA) fiber, bio-based polyamide fiber, bio-protein fiber and other bio-based fibers have achieved large-scale production; Seaweed fiber, chitosan fiber, PHBV/PLA blend fiber, and hemp pulp fiber also achieve stable production
.

At the same time, with the development of refining and chemical integration and the continuous improvement of the industrial chain, China's chemical fiber industry has realized the integrated development model
of the whole industry chain from crude oil refining to chemical fiber textile.
As of 2021, China's chemical fiber industry has formed a number of internationally competitive large-scale enterprise groups, such as polyester head enterprises represented by Hengli Group, Rongsheng Group, Hengyi Group, Shenghong Group, Tongkun Group, Xinfengming Group, etc.
, nylon head enterprises represented by Hengshen Group and Jinjiang Technology, and carbon fiber head enterprises
represented by Zhongfu Shenying, Guangwei Composite, Jiangsu Hengshen, Jilin Carbon Valley, etc.
Hengli Group, Rongsheng Group, Hengyi Group and Shenghong Group have entered the Fortune Global 500 list
.

In recent years, the new projects of leading chemical fiber enterprises have adopted the world's new technologies, new processes and new equipment, representing the world's most advanced productive forces and promoting China's chemical fiber industry to continue to walk in the forefront
of the development of the world's chemical fiber industry.

Rubber: striding towards a strong country

Building a strong rubber industry is the long-cherished wish
of generations of rubber people in China.
In 2011, the China Rubber Industry Association compiled the "Research on the Development Strategy of China's Rubber Industry Power", which put forward the strategic goals and specific measures of
China's rubber industry power.
In the past ten years, in accordance with this deployment, China's rubber industry has developed
steadily from large to strong.

The output of major products has increased
steadily.
According to the statistics of the China Rubber Industry Association, the output of rubber tires in China will reach 697 million in 2021, compared with the output in 2012 (the same below), the average annual growth rate will reach 4.
48%.

。 Among them, the output of radial tires reached 657 million, with an average annual growth rate of 5.
27%; The output of electric bicycle tires is 390 million, with an average annual growth rate of 8.
97%; The output of conveyor belts is 620 million square meters, with an average annual growth rate of 2.
88%; Hose output of 1.
95 billion B meters, an average annual growth rate of 5.
54%; The output of automotive shock absorption products was 19.
05 billion, with an average annual growth rate of 3.
24%; The output of export auto rubber parts was 43.
33 billion, with an average annual growth rate of 5.
88%; The output of carbon black was 6.
32 million tons, with an average annual growth rate of 4.
32%; The output of rubber additives was 1.
37 million tons, with an average annual growth rate of 5.
86%; The output of steel wire cord was 2.
87 million tons, with an average annual growth rate of 6.
71%.

Tire production accounts for about 1/3 of the world's tire production, rubber additives production accounts for 70% of the world, steel cord output of more than 60%, steel wire rope conveyor belt, carbon black, rubber machinery, rubber products, tire molds and other output are ranked first in the
world.

The product structure is further optimized
.
In the past decade, the tire meridian rate has increased from 88% a decade ago to more than
94%.
The tire product structure has been further optimized, and the flat passenger car radial tire, tubeless load radial tire, giant construction machinery radial tire, agricultural radial tire and aviation radial tire have become the industry's leading products
.
Engineering giant radial tires have made a breakthrough, China has now manufactured the world's largest scale mine super large dump truck giant radial tire 59/80R63, batch supply to the market
.
The product structure of the tire market has been optimized, and the radial motorcycle tire has achieved a breakthrough
of zero.
The output of steel wire rope core rubber conveyor belts, whole core flame retardant rubber conveyor belts, light rubber conveyor belts and other products accounted for a steady increase
in the proportion of the total output of rubber conveyor belts.
The industry has successfully developed low-rolling resistance steel wire rope core rubber conveyor belts, environmentally friendly steel wire rope core flame retardant rubber conveyor belts and other products, high-end rubber products for high-speed rail, national defense, automotive and shock absorption industries to achieve localization, product quality has been greatly improved
.

The level of technology continues to improve
.
The tire industry has carried out technological innovation in synthetic rubber continuous liquid phase mixing, natural rubber wet mixing, low-temperature continuous one-time mixing, tire in-mold direct pressure vulcanization manufacturing, 3D printing polyurethane tires, etc.
, of which "the design and preparation of high-performance rubber nanocomposites for fuel-saving tires" won the second prize of the National Science and Technology Invention Award
.
Radial motorcycle tires, multifunctional wire motorcycle tires and non-inflatable bicycle tires achieved a breakthrough
of zero.
In 2017, Shandong Yanggu Huatai Chemical Co.
, Ltd.
took the lead in building a 3,000 tons/year device in China, becoming the third enterprise in the world to master the continuous method of producing insoluble sulfur, and completed and put into operation 20,000 tons/year in
2019.
In 2016, the first tire test site (Central Asia tire test site) was built in China, and it was put into normal commercial operation in early 2020, filling the gap
of a large outdoor comprehensive tire test field in the domestic tire industry.

The results of energy conservation and emission reduction are remarkable
.
During the "13th Five-Year Plan" period, the rubber industry has formulated a series of industry standards and association standards
on green design product evaluation, cleaner production evaluation index system, green factory evaluation and green supply chain.
By 2021, the industry has completed a total of 369 standard revisions
.
In view of the pollutants produced in the production process of rubber products, the industry carried out a thorough investigation, completed the "National Second Pollution Source Census Production and Discharge Coefficient Accounting Method Research", "National Second Pollution Source Census Rubber Products Industry VOC Production Emission Coefficient Revision", "Rubber Industry Pollution Prevention and Control Technology Policy Research" and other projects, formulated a green development roadmap and the rubber products industry pollution prevention and control technology route (source control - process control - pollution prevention and control feasible treatment technology), the whole industry in energy conservation and emission reduction, Remarkable results
have been achieved in environmental control management.